Maryland State Police said they found the man around 2:40 a.m. just south of Route 222 in Conowingo.

The investigation left Route 1 shut down for hours as police tried to figure out how the man ended up on the side of the road.

Police said Mark T. Grubbs, of Pylesville, was pronounced dead at the scene.

Authorities said troopers initially believed that Grubbs was involved in a motor vehicle collision, but after further investigation, investigators believe his death may not have resulted from a crash.

On Saturday, state police said several leads indicate Grubbs was at Sweeny's Bar in the 100 block of Conowingo Road before his death. Investigators are interviewing anyone who may have been at the bar on Friday.

The body was taken to the Office of the Chief Medical Examiner in Baltimore for an autopsy to determine the cause of death.

Police urge anyone with information to contact state police at 410-996-7800. Caller may remain confidential.